* {
    margin: 0;
    padding: 0;
}

a {
    text-decoration: none;
}

li {
    list-style: none;
}

.taobao {
    position: relative;
    width: 520px;
    height: 280px;
    background-color: pink;
    margin: 100px auto;
}

.taobao img {
    width: 520px;
    height: 280px;
}

.arr-l,
.arr-r {
    position: absolute;
    top: 50%;
    width: 20px;
    height: 30px;
    margin-top: -15px;
    color: white;
    background: rgba(0, 0, 0, .2);
    line-height: 30px;
}
.arr-l {
    left: 0;
    border-top-right-radius: 15px;
    border-bottom-right-radius: 15px;
    text-align: left;
}
.arr-r {
    right: 0;
    border-top-left-radius: 15px;
    border-bottom-left-radius: 15px;
    text-align: right;
}

.arr-l:hover,
.arr-r:hover {
    background: rgba(0, 0, 0, .5);
}

.circle {
    position: absolute;
    bottom: 10px;
    left: 50%;
    margin-left: -35px;
    width: 70px;
    height: 13px;
    background:rgba(255, 255, 255, .3);
    border-radius: 7px;
}

.circle li {
    float: left;
    width: 8px;
    height: 8px;
    background-color: #fff;
    border-radius: 50%;
    margin: 3px;
}

.circle .current{
    background-color: #ff5000;
}